Joseph j



(No Model.)

J. J. CARR.

MOLD FORMING DEVICE.

No. 409,666. Patented Aug. 27, 1889.

FIEI l W -I M \NITNESSES WW UNITED STATES PATENT OFFICE.

JOSEPH J. CARR, OF WVILKES-BARRE, PENNSYLVANIA, ASSIGNOR TO THEIVILKES-BARRE MOLDING MACHINE COMPANY, OF SAME PLACE.

MOLD-FORMING DEVICE.

SPECIFICATION forming part of Letters Patent No. 409,666, dated August27, 1889.

Application filed May 31, 1888. Serial No. 275,644. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH J. CARR, a citizen of the United States,residing in VVilkes- Barre, in the county of Luzerne, in the State ofPennsylvania, have invented certain new and useful Improvements inMold-Forming Devices, of which the following is a specification.

My invention relates to devices used for forming circular forms orpatterns in molding sand contained in a flask, and employed, preparatoryto the compression of the sand by a pattern of the ultimateconfiguration, to so distribute the mass of sand within the flask as toimpart to it an approximation of the designed ultimate form into whichthe final pressing pattern is to afterward con1 pact it.

The object of myinvention is the provision of a simple and inexpensivedevice adapted to perform the function stated with accuracy and speed.

A convenient embodiment of my invention is represented in the drawingsand described in this specification, the particular subject matterclaimed as novel being hereinafter definitely specified.

I11 the drawings, Figure l is a side elevation of an apparatus embodyingmy invention. Fig. 2 is a central sectional view of the drag of a flaskfor car wheels after the sand contained in the same has been operatedupon by the shaping device shown in Fig. 1. Fig. 3' is a perspectiveview of what I term the sweeper arm. Fig. A is a magnified detail of thesame, being a section taken on the dotted line was of Fig. 3, and sightbeing taken in the direction of the arrow upon said line. Fig. 5 is atop plan View of the feathered bevel pinion employed to drive the shaft.

Similar letters of reference indicate corresponding parts.

In the drawings, A is a cross beam or supporting timber, and a a bracketbearing mounted upon the same. 13 is a vertical shaft supported in saidbearing, and free for rotary and to a limited extent for vertical,movement with respect thereto. To the lower end of the shaft is rigidlyattached what I term a sweeper arm C. This arm may be made of anyvdesired form and material, and at* tached to the shaft B in any desiredmanner. In the drawings it is shown as attached by means of a metalstrap 0. The lower edge of the arm is shaped to the radial top outlineof the concentric pattern into which the sand is to be swept. To thatside of the arm which in the rotation of the device is the front side,is attached a sweeper flange D. This flange, which is preferably made ofsheet metal, conforms to the outline of the lower edge of the arm, andis conveniently provided with upturned clips (1 through which it may bescrewed thereto. As shown in the drawings .and particularly in Fig. A,the flange has a slight forward and downward droop, so that its frontedge lies below the edge nearest the arm C. I

E is a roller, mounted upon an axle e, sup ported in any convenientmanner from the shaft B. I prefer to support it as shown, that is tosay, by means of a sleeveF mounted upon the shaft B and rigidly butadjustably held in position thereon by the screw f, and from whichsleeve depends a bracket arm f in which the axle e finds a bearing. Theroller E possesses a circumferential contour, the outline of which isthe counterpart of that of the lower edge of the arm C, and cooperatesas a valuable auxiliary with said arm in reducing the sand of the flaskto the form desired.

J is the drag flask and K the sand contained therein.

G is a beveled pinion feathered upon the upper portion of the shaft B insuch position as to rest upon the bracket a. A correspondingly beveledspur wheel II, shown in Fig. 1, is suitably mounted for engagement withthe pinion G, and being driven in any convenient manner drives themachine. The upper end of the shaft B is equipped with twocircumferential rings or collars Z) 0 of any suitable character.

I is a lever arm, suitably fulcru med in any desired manner at the point'i, and having its inner extremity bifurcated, so that its prongsembrace the shaft between its collars Z) I).

The operation of the device will be understood from the foregoingdescription; rotation imparted to the spur wheel H occasions therotation of the pinion G and with it the shaft B and its connecteddevices. Through the instrumentality of the arm I the shaft B and itsconnected sweeper arm and roller may be lowered to act upon sand withina flask placed under the device, and, after the operation has takenplace, be raised to permit the removal of the flask,-all of which isaccomplished without reference to the rotation of the shaft B, for, asis obvious. the pinion Having thus described my invention, I

claim 111 a device for forming molds for car wheels, in combination, avertical shaft, a roller and a sweeper arm, which radially andhorizontally project from the lower end of said shaft, the lower face ofthe arm and the outline of the roller corresponding to the configurationof the mold to be produced, a projecting flange attached to one side ofthe arm and following the curvature of the lower face thereof, andvertically adjustable devices for attaching the roller to the shaft,substantially as set forth.

In testimony that I claim the foregoing as my invention I have hereuntosigned my name this 29th day of May, A. D. 1888.

J. BoNsALL TAYLOR, WM. 0. STRAWBRIDGE.

